I'm not entirely sure what this means, but I suppose Daniel Foster thinks that feminists mostly sit around lazily not doing too much. Presumably, therefore, fighting for suffrage, equal pay, opportunity, and reproductive rights -- all things the National Review hate -- doesn't fall under the category of "fricking doing stuff."
To be fair, this is an appropriate tribute to the Iron Lady, since she herself famously said,
I hate feminism. It's poison.
There you have it.